Home » Paddle Wheel Level Switch Principle
Level Measurement Switches

Paddle Wheel Level Switch Principle

A more primitive variation on the theme of a “tuning fork” level switch is the rotating paddle switch, used to detect the level of powder or granular solid material. This level switch uses an electric motor to slowly rotate a metal paddle inside the process vessel. If solid material rises to the level of the paddle, the material’s bulk will place a mechanical load on the paddle.

A torque-sensitive switch mechanically linked to the motor actuates when enough torsional effort is detected on the part of the motor. A great many level switches of this design sold in the United States under the trade-name Bindicator (so-called because they detected the level of solid material in storage bins).

Paddle Wheel Level Switch

Paddle Wheel Level Switch Principle

A “Bindicator” style of level switch appears in this photograph (painted black, against a white painted hopper), used to detect the presence of soda ash powder in a hopper at a water treatment plant:

Articles You May Like :

RF Admittance Level Principle

Interposing Relay in a PLC System

Rotary Level Switch Working

Micro-impulse Level Transmitter

Float & Dial Level Gauge

Related Articles

DP Transmitter with two seals applications

S Bharadwaj Reddy

Pressure Transmitters Leg Compensation Technique

S Bharadwaj Reddy

Zero Elevation and Zero Suppression in Level Measurement

S Bharadwaj Reddy

Level Indicators Working Principle

S Bharadwaj Reddy

Thermal Dispersion Flow Switch Working Principle

S Bharadwaj Reddy

Temperature Switch Working Principle

S Bharadwaj Reddy

Leave a Comment

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More

Paddle Wheel Level Switch Principle

WordPress Image Lightbox

Send this to a friend